/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */

package l1j.jrwz.server.serverpackets;

import java.util.concurrent.atomic.AtomicInteger;
import java.util.logging.Logger;

import l1j.jrwz.server.Opcodes;
import l1j.jrwz.server.model.L1Character;

// Referenced classes of package l1j.jrwz.server.serverpackets:
// ServerBasePacket

public class S_RangeSkill extends ServerBasePacket {

    private static final String S_RANGE_SKILL = "[S] S_RangeSkill";
    @SuppressWarnings("unused")
    private static Logger _log = Logger.getLogger(S_RangeSkill.class.getName());

    private static AtomicInteger _sequentialNumber = new AtomicInteger(0);

    private byte[] _byte = null;

    public static final int TYPE_NODIR = 0;

    public static final int TYPE_DIR = 8;

    private static int calcheading(int myx, int myy, int tx, int ty) {
        int newheading = 0;
        if (tx > myx && ty > myy) {
            newheading = 3;
        }
        if (tx < myx && ty < myy) {
            newheading = 7;
        }
        if (tx > myx && ty == myy) {
            newheading = 2;
        }
        if (tx < myx && ty == myy) {
            newheading = 6;
        }
        if (tx == myx && ty < myy) {
            newheading = 0;
        }
        if (tx == myx && ty > myy) {
            newheading = 4;
        }
        if (tx < myx && ty > myy) {
            newheading = 5;
        }
        if (tx > myx && ty < myy) {
            newheading = 1;
        }
        return newheading;
    }

    public S_RangeSkill(L1Character cha, L1Character[] target, int spellgfx,
            int actionId, int type) {
        buildPacket(cha, target, spellgfx, actionId, type);
    }

    private void buildPacket(L1Character cha, L1Character[] target,
            int spellgfx, int actionId, int type) {
        writeC(Opcodes.S_OPCODE_RANGESKILLS);
        writeC(actionId);
        writeD(cha.getId());
        writeH(cha.getX());
        writeH(cha.getY());
        if (type == TYPE_NODIR) {
            writeC(cha.getHeading());
        } else if (type == TYPE_DIR) {
            int newHeading = calcheading(cha.getX(), cha.getY(),
                    target[0].getX(), target[0].getY());
            cha.setHeading(newHeading);
            writeC(cha.getHeading());
        }
        writeD(_sequentialNumber.incrementAndGet()); // 番号がダブらないように送る。
        writeH(spellgfx);
        writeC(type); // 0:範囲 6:遠距離 8:範囲&遠距離
        writeH(0x0000);
        writeH(target.length);
        for (L1Character element : target) {
            writeD(element.getId());
            writeH(0x20); // 0:ダメージモーションあり 0以外:なし
        }
    }

    @Override
    public byte[] getContent() {
        if (_byte == null) {
            _byte = _bao.toByteArray();
        }
        return _byte;
    }

    @Override
    public String getType() {
        return S_RANGE_SKILL;
    }

}
